Question

A train is travelling at a speed
of 90 km h-1 Brakes are applied
so as to produce a uniform
acceleration of - 0.5 m s -2. Find
how far the train will go before it
is brought to rest.
​

Answer 1

v = 0

u = 90km/h = 25m/s

a = -0.5 s²

2as = v² - u²

2×-0.5×s = 0 - 625

-1s = -625

s = 625m